نتایج جستجو برای: green oxidation

تعداد نتایج: 255057  

Ahmad Reza Massah Hamid Aliyan, Hamid Javaherian Naghash Razieh Fazaeli Saeed Moradi

The aerobic oxidation of alcohols was efficiently completed in high conversion and selectivity using Cu3/2[PMo12O40]/SiO2 as catalyst under mild reaction condition. This reaction provides a new environmentally friendly rout to the conversion of alcoholic function to carbonyl groups.

In this paper, meso-Tetraphenylporphyrin iron(III) chloride complex, Fe(TPP)Cl, supported on magnetic nanoparticles (PCMNPs) was synthesized and characterized by HRTEM, SEM, TGA, and FT-IR and VSM. The value of saturation magnetic moments of MNPs and PCMNPs are 68.5 and 60.3 emu/g, respectively. The SEM and HRTEM image were shown the uniformity and spherical-like morphology of nanoparticles wit...

2012
E. Kavitha

This paper presents the treatment of Acid green V by an electrochemical oxidation using Ti/RuO2 IrO2 TiO2 as anode and cathode and NaCl as supporting electrolyte in a tubular flow reactor under continuous single pass process. During the electrolysis, COD reduction, color removal, and energy consumption were investigated under different flow rates and current densities. The experimental results ...

2017
Sheng-Huei Hsiao Wei-Kai Liao Guey-Sheng Liou

Two series of polyamides and polyimides containing bulky trityl-substituted triphenylamine units were synthesized from condensation reactions of 4,4′-diamino-4′ ′-trityltriphenylamine with various dicarboxylic acids and tetracarboxylic dianhydrides, respectively. The polymers showed good solubility and film-forming ability. Flexible or robust films could be readily obtained via solution-casting...

Journal: :Green chemistry : an international journal and green chemistry resource : GC 2010
Xuan Ye Martin D Johnson Tianning Diao Matthew H Yates Shannon S Stahl

The synthetic scope and utility of Pd-catalyzed aerobic oxidation reactions has advanced significantly over the past decade, and these reactions have potential to address important green-chemistry challenges in the pharmaceutical industry. This potential has been unrealized, however, because safety concerns and process constraints hinder large-scale applications of this chemistry. These limitat...

Journal: :Food chemistry 2014
S F S Reihani Thuan-Chew Tan Nurul Huda Azhar Mat Easa

In Malaysia, fresh ulam raja leaves (Cosmos caudatus) are eaten raw with rice. In this study, beef patties incorporated with extracts of ulam raja (UREX) and commercial green tea extract (GTE) added individually at 200 and 500 mg/kg were stored at -18°C for up to 10 weeks. Lipid oxidation, cooking yield, physicochemical properties, textural properties, proximate composition and sensory characte...

Journal: :Chemical science 2015
Xianjun Lang Wei Hao Wan Ru Leow Shuzhou Li Jincai Zhao Xiaodong Chen

The selective oxidation of sulfides into sulfoxides receives much attention due to industrial and biological applications. However, the realization of this reaction with molecular oxygen at room temperature, which is of importance towards green and sustainable chemistry, remains challenging. Herein, we develop a strategy to achieve the aerobic oxidation of sulfides into sulfoxides by exploring ...

2012
V Krishna Reddy S Mutta Reddy P Raveendra Reddy Sreenivasulu Reddy

Cobalt(ll) and gold(lll) react with 2,4-dihydroxy acetophenone oxime (RPO) formi ng yellowish brown and greyish green coloured soluble complexes respectively. The reactions are very slow but become fast in the presence of K2SPxThis may be due to the enhancement of aerial oxidation of metal complexes wi th RPO in their lower oxidation states (Co(! I), Au( III )) to coloured complexes with higher...

2016
Carl J. Houtman Peter Kitin Jon C. D. Houtman Kenneth E. Hammel Christopher G. Hunt

Colonization of wood blocks by brown and white rot fungi rapidly resulted in detectable wood oxidation, as shown by a reduced phloroglucinol response, a loss of autofluorescence, and acridine orange (AO) staining. This last approach is shown to provide a novel method for identifying wood oxidation. When lignin was mildly oxidized, the association between AO and lignin was reduced such that stai...

Ahmad Reza Massah Hamid Aliyan, Hamid Javaherian Naghash Razieh Fazaeli Saeed Moradi

The aerobic oxidation of alcohols was efficiently completed in high conversion and selectivity using Cu3/2[PMo12O40]/SiO2 as catalyst under mild reaction condition. This reaction provides a new environmentally friendly rout to the conversion of alcoholic function to carbonyl groups.

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید